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(a) Interferon (IFN)-γ expression in supernatants of biopsies from healthy controls and from non-inflamed areas of patients with inflammatory bowel disease (IBD) using enzyme-linked immunosorbent assay (ELISA). (b) IFN-γ expression in supernatants of biopsies from non-inflamed and inflamed areas of patients with Crohn's disease. (c) IFN-γ expression in supernatants of biopsies from non-inflamed and inflamed areas of patients with ulcerative colitis.
